...improvements to and uses for the steam engine, improvements to the thermometer and barometer...
2To Benjamin Franklin from François Willem de Monchy, 9 January 1767 (Franklin Papers)
...Desaguliers made several improvements in steam engines and evidently worked on one erected to...
3To Benjamin Franklin from Anthony Tissington, 17 May 1767 (Franklin Papers)
That is, steam engines.
4To Benjamin Franklin from William Small, 19 October 1769 (Franklin Papers)
...had recently been associated with James Watt in developing the steam engine. See above,
5To Benjamin Franklin from John Cuthbert, 30 July 1773 (Franklin Papers)
...engine, a forerunner of Watt’s steam engine, is described at length with two full-...
6To Benjamin Franklin from William Blakey, 9 January 1778 (Franklin Papers)
..., and his specialty is the coal-fired steam engine; he has traveled widely in western...
7To Benjamin Franklin from Le Roy, [1781 or after] (Franklin Papers)
...(or “machine à feu,” the common terms for steam engine).